A Projectile Is Fired from Ground Level at an Angle

question 17

Multiple Choice

A projectile is fired from ground level at an angle above the horizontal on an airless planet where g = 10.0 m/s².The initial x and y components of its velocity are 86.6 m/s and 50.0 m/s respectively.How long after firing does it take before the projectile hits the level ground?

• A)5.00 seconds
• B)10.0 seconds
• C)15.0 seconds
• D)20.0 seconds

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Definitions:

Devalues Its Currency

A country intentionally lowering the value of its national currency relative to other currencies to boost exports and improve its trade balance.